export function BMPGL(ak){
    return new Promise(function(resolve,reject){
        window.init=function(){resolve(BMapGL)}
        const script=document.createElement('script')
        script.type='text/javascript'
        script.src=`http://api.map.baidu.com/api?v=1.0&type=webgl&ak=${ak}&callback=init`
        script.onerror=reject
        document.head.appendChild(script)
    })
}